August 1, 1919] 



SCIENCE 



117 



body cavity. Anterior to this septum the ab- 

 dominal cavity is entirely empty. 



In tbe resting spore condition the fmigus 

 mass, in the males, in the early stages at least, 

 likewise confined to the posterior portion of 

 the abdomen, is at first vrhite, then sulphur 

 yellow and finally greenish brovm or brown in 

 color, and only slightly coherent. While the 

 fimgus in this stage of development seems 

 likewise to be confined to the genitalia of the 

 host, there is apparently no septum formed, 

 and at maturity the resting spores, scatter 

 about the entire body cavity. The resting 

 spores, which are extremely uniform in size, 

 are remarkably ornamented and at maturity 

 form a dustlike mass which is freed from the 

 insect by the disintegratiorL of the interseg- 

 mental membranes of the abdomen. 



In the few infected females that the writer 

 has examined the fungus mass fills nearly the 

 entire body cavity. 



As noted by previous writers, many in- 

 fected cicadas were found still alive and 

 actively flying about with but a portion of the 

 abdomen remaining, the entire posterior por- 

 tion having sloughed off leaving the conidia 

 or resting spores of the fungus exposed in 

 such a way that every movement of the host 

 served to scatter them. 



It is hoped that a full account of the life 

 history of this fungus will be published soon. 

 A. T. Speaee 



Bureau op Entomology, 

 Washington, D. C. 



THE OHIO ACADEMY OF SCIENCE 



The twenty-ninth annual meeting of the Ohio 

 Academy of Science was held at Ohio State Uni- 

 versity, Columbus, May 29 to 31, 1919, under the 

 presidency of Professor Maynard M. Metealf. 

 Seventy-nine members were registered as present; 

 forty new members were elected. 



The academy formally recognized the establish- 

 ment of a new section for Psychology, with an 

 initial membership of about twenty. 



It was reported by the trustees of the Research 

 Fund that Mr. Emerson McMillin, of New York 

 City, had made a further contribution of two hun- 

 dred and fifty dollars in support of research work 

 by the academy. 



At the close of the formal session, the geologists, 

 under the leadership of Professors J. E. Hyde and 

 T. M. Hills, made an excursion to Newark for the 

 study of glacial physiography and the Upper 

 Waverly formation, while Professor W. M. Bar- 

 rows conducted a zoological and botanical excur- 

 sion to Sugar Grove. 



Officers were elected as follows: President, P. C. 

 Blake, Ohio State University; Vice-presidents: 

 Zoology, P. H. Herrick, Western Reserve Univer- 

 sity; Botany, A. B. Plowman, Municipal Univer- 

 sity of Akron; Geology, J. E. Hyde, Western Re- 

 serve University; Physics, M. E. Graber, Heidel- 

 berg University; Medical Sciences, E. J. Seymour, 

 Ohio State University; Psychology, G. R. Wells, 

 Ohio Wesleyau University; Secretary, E. L. Rice, 

 Ohio Wesleyan University; Treasurer, W. J. Kos- 

 tir, Ohio State University. 



The scientific program was as follows: 



PRESroENTIAL ADDKESS 



The scientifio spirit: Professor Maynard M. 

 Metcalf, printed in Science for June 13, 1919. 



PUBLIC LECTURE 



Airplanes, present and future: Mr. David Car- 

 roll Churchill, Oberlin. 



The theory of chance applied to the Bacon-ShaTces- 

 peare controversy : T. C. Mendenhall. 



Teleology in the teaching of zoology: W. M. Bar- 

 rows. 



Dynamics and evolution as illustrated in the 

 euglenoids: L. B. Walton. 



Notes on a technique for the study of Muglenidw : 

 W. J. KosTte. 



The comparative resistance of different species of 

 Euglenidw to acids: W. J. Kostir. 



Notes on a tingid destructive to ieans: Herbert 



OSBORN. 



The European corn iorer (Fyrausta nuiilalis 

 Huin) a menace to American agriculture : E. C. 

 Cotton. 



The stratification of spiders ire meadows: W. M. 

 Barrows. 



Concerning the attachment of larval colonies of 

 Pectinatella and Plumatella: Stephen R. Wil- 

 liams. 



Remarks on the phylum Prosopygia: Raymond C. 



OSBURN. 



The bryozoan fauna of Greenland: Raymond C. 



OsBURN. 



Classification of the SalpidcB : Maynard M. Met- 



CALF. 



The remarlcaile fauna of a drop of pond water: W. 



J. Kostir. 

 Polymorphism and allelomorphism in Bruchus 



quadrimaculatus : J. K. Breitenbecher. 

 Circulation of ccelomic fluid in a nematode: P. H. 



Kregker. 

 Egg laying of a leech, Piscicola: P. H. Krecker. 

 The columella auris of the reptiles: Edward L. 



Rice. 



